Being a positive person does not by any means mean you don’t acknowledge the negative in the world. It means you focus on the positive in order to head in that direction and to maintain a more pleasant mental and emotional state (because who really wants to unnecessarily feel sour all the time?) What you focus on magnifies naturally. Feeling dark and angry does nothing for you. However, feeling positive allows you more power to not only feel good but to do good; this not only makes your world but the world as a whole a better place.